Webpage for Marius Bulacu

Writer Identification (automatic person identification using scanned images of handwriting):

• Axel Brink, Jinna Smit, Marius Bulacu, Lambert Schomaker (2012) "Writer identification using directional ink-trace width measurements", Pattern Recognition, vol. 45, no. 1, pp. 162-171, January.

• Axel Brink, Marius Bulacu, Lambert Schomaker (2008) "How much handwritten text is needed for text-independent writer verification and identification", Proc. of 19th Int. Conf. on Pattern Recognition (ICPR 2008), 8 - 11 December, Tampa, Florida, USA.

• Marius Bulacu, Lambert Schomaker (2007) "Automatic handwriting identification on medieval documents", Proc. of 14th Int. Conf. on Image Analysis and Processing (ICIAP 2007), IEEE Computer Society, pp. 279-284, 11 - 13 September, Modena, Italy.

• Marius Bulacu, Lambert Schomaker, Axel Brink (2007) "Text-independent writer identification and verification on offline Arabic handwriting", Proc. of 9th Int. Conf. on Document Analysis and Recognition (ICDAR 2007), IEEE Computer Society, pp. 769-773, vol. II, 23 - 26 September, Curitiba, Brazil.

• Axel Brink, Lambert Schomaker, Marius Bulacu (2007) "Towards explainable writer verification and identification using vantage writers", Proc. of 9th Int. Conf. on Document Analysis and Recognition (ICDAR 2007), IEEE Computer Society, pp. 824-828, vol. II, 23 - 26 September, Curitiba, Brazil.

• Marius L. Bulacu (2007) "Statistical pattern recognition for automatic writer identification and verification", PhD thesis, Artificial Intelligence Institute, University of Groningen, The Netherlands, 140 pages, ISBN 90-367-2912-2, 15 March. (also the associated "stellingen".)

• Marius Bulacu, Lambert Schomaker (2007) "Text-independent writer identification and verification using textural and allographic features", IEEE Trans. on Pattern Analysis and Machine Intelligence (PAMI), Special Issue - Biometrics: Progress and Directions, IEEE Computer Society, vol. 29, no. 4, pp. 701-717, April.

• Lambert Schomaker, Katrin Franke, Marius Bulacu (2007) "Using codebooks of fragmented connected-component contours in forensic and historic writer identification", Pattern Recognition Letters (PRL), Pattern Recognition in Cultural Heritage and Medical Applications, Elsevier Science, vol. 28, no. 6, pp. 719-727, 15 April.

• Marius Bulacu, Lambert Schomaker (2006) "Combining multiple features for text-independent writer identification and verification", Proc. of 10th International Workshop on Frontiers in Handwriting Recognition (IWFHR 2006), pp. 281-286, 23 - 26 October, La Baule, France.

• Marius Bulacu, Lambert Schomaker (2005) "GRAWIS: Groningen Automatic Writer Identification System" [software demo summary], Proc. of 17th Belgium-Netherlands Conference on Artificial Intelligence (BNAIC 2005), pp. 413-414, 17 - 18 October, Brussels, Belgium.

• Marius Bulacu, Lambert Schomaker (2005) "A comparison of clustering methods for writer identification and verification", Proc. of 8th Int. Conf. on Document Analysis and Recognition (ICDAR 2005), IEEE Computer Society, pp. 1275-1279, vol. II, 29 August - 1 September, Seoul, Korea.

• Marius Bulacu, Lambert Schomaker (2004) "Analysis of texture and connected-component contours for the automatic identification of writers" [extended abstract], Proc. of 16th Belgium-Netherlands Conference on Artificial Intelligence (BNAIC 2004), pp. 371-372, 21 - 22 October, Groningen, The Netherlands.

• Lambert Schomaker, Marius Bulacu, Katrin Franke (2004) "Automatic writer identification using fragmented connected-component contours", Proc. of 9th International Workshop on Frontiers in Handwriting Recognition (IWFHR 2004), IEEE Computer Society, pp. 185-190, 26 - 29 October, Tokyo, Japan.

• Lambert Schomaker, Marius Bulacu (2004) "Automatic writer identification using connected-component contours and edge-based features of upper-case western script", IEEE Trans. on Pattern Analysis and Machine Intelligence (PAMI), IEEE Computer Society, vol. 26, no. 6, pp. 787-798, June.

• Marius Bulacu, Lambert Schomaker (2003) "Writer style from oriented edge fragments", Proc. of 10th Int. Conf. on Computer Analysis of Images and Patterns (CAIP 2003): LNCS 2756, Springer, pp. 460-469, 25 - 27 August, Groningen, The Netherlands.

• Lambert Schomaker, Marius Bulacu, Merijn van Erp (2003) "Sparse-parametric writer identification using heterogeneous feature groups", Proc. of Int. Conf. on Image Processing (ICIP 2003), IEEE Press, pp. 545-548, vol. I, 14 - 17 September, Barcelona, Spain. (available also in .pdf form a poster.)

• Marius Bulacu, Lambert Schomaker, Louis Vuurpijl (2003) "Writer identification using edge-based directional features", Proc. of 7th Int. Conf. on Document Analysis and Recognition (ICDAR 2003), IEEE Computer Society, pp. 937-941, vol. II, 3 - 6 August, Edinburgh, Scotland.

Handwritten Historical Document Analysis and Recognition (layout analysis, digit recognition, word spotting for indexing and retrieval):

• Marius Bulacu, Axel Brink, Tijn van der Zant, Lambert Schomaker (2009) "Recognition of handwritten numerical fields in a large single-writer historical collection", Proc. of 10th Int. Conf. on Document Analysis and Recognition (ICDAR 2009), IEEE Computer Society, pp. 808-812, 26 - 29 July, Barcelona, Spain.

• Marius Bulacu, Rutger van Koert, Lambert Schomaker, Tijn van der Zant (2007) "Layout analysis of handwritten historical documents for searching the archive of the Cabinet of the Dutch Queen", Proc. of 9th Int. Conf. on Document Analysis and Recognition (ICDAR 2007), IEEE Computer Society, pp. 357-361, vol. I, 23 - 26 September, Curitiba, Brazil.

Camera-Based Text Detection and Recognition (finding and reading the text present in images of natural scenes):

• Nobuo Ezaki, Bui Truong Minh, Kimiyasu Kiyota, Marius Bulacu, Lambert Schomaker (2005) "Improved text-detection methods for a camera-based text reading system for blind persons", Proc. of 8th Int. Conf. on Document Analysis and Recognition (ICDAR 2005), IEEE Computer Society, pp. 257-261, vol. I, 29 August - 1 September, Seoul, Korea.

• Nobuo Ezaki, Marius Bulacu, Lambert Schomaker (2004) "Text detection from natural scene images: Towards a system for visually impaired persons", Proc. of 17th Int. Conf. on Pattern Recognition (ICPR 2004), IEEE Computer Society, pp. 683-686, vol. II, 23 - 26 August, Cambridge, UK.

Reading Robots (mobile robots that detect and read the text encountered in their environment):

• Marius Bulacu, Nobuo Ezaki, Lambert Schomaker (2008) "Text detection and pose estimation for a reading robot", book chapter in "Mobile Robots Motion Planning, New Challenges" edited by Xing-Jian Jing, I-Tech Education and Publishing, Vienna, Austria, pp. 39-62, ISBN 978-953-7619-01-5, June. (the complete book can be downloaded from the website of I-Tech)

• Marius Bulacu, Lambert Schomaker (2005) "Text-pose estimation in 3D using edge-direction distributions", Proc. of Int. Conf. on Image Analysis and Recognition (ICIAR 2005): LNCS 3656, Springer, pp. 625-634, 28 - 30 September, Toronto, Canada.